Door spring



Dec. 18, 1928 1,695,454

E. J. C OYNE .DOOR SPRING Filed May 23, 1927 INVENTOR [fin AMI Cam/E 3' BY f gz;

- ATTOR Y Patented Dec. .18, 1 928.

EDWARD J. ooYNE, (Jr-BROO LYN, NEW YORK.

. noon SPRING.

Application filediMay 23;

This invention relates to door springs or devicesof this class foruse inmovmga swinging member into apredeterminedpos i- I tion; and the obj ect of the invention-is to provide a device of the class specifiedwith im proved and simplified means at the end por-- tions of the spring member thereof for mounting said member in connection with a stationary support and swinging member, a further object being to provide a mounting means for springs of'the class specified fashioned from sheet metal bent to form attach ing bracket portions and spring engaging."

portions, one of said bracket members having a sheet metal part movably mounted 1n connectiontherewith for rotating the spring to increase or decrease the tensionthereof, and means for securing said part and spring in predetermined position of adjustment; and with these and other objects in view, the in vention consists in 'adcvice of the class and for the purpose specified, which is simple in construction, efficient in use, and whichis constructed 1 as hereinafter described and claimed. y g

The invention is fully disclosed 1n the following specification, of which the accom panying drawing-forms apart, in which the separate parts of my improvement are designated by suitablereference characters in each of the views, and in which h Fig; 1 is a face view of a part-of a door' and door-frame; showing one of my im-f proved springs mounted in connection therewith. s

Fig. 2 is a sectionahplan View of the 513F116; ture shown. in Fig. 1.

Fig. 3 is a sectional, 33 of'Fig. 2. Fig. 4 is a perspective view of a modrfied form of construction; and,

Fig. 5 is a perspective view other modificatiom my In practice, Iprovide a spring body 10in the form ofa coilspring of the desired tension to suit the requirements, it being under stood that a lights ring is employed for actuating a'door o 'light weight and a heavier spring for a door of heavierweight, and-coupled with-one end of the spring is an attaching b'racket member 11 fashioned from sheet metal, one part 11 being apertured to receive the attaching screws.- 12 for securing said member to a support, for example, the 7 door 13 in the construction shown. 1 Extenddetail view on the. line showing an 1927. Serial No. 193,426.:

ing atan angle to the part 11 is. a reduced shoulder portlon ll upon which the end 10; of the spring rests. Extending from. the

shoulder portion 11 is a IeCl1uce d 'p-arb1p which is arrangedin. substantially parallel relation to the partli and passesthrough 1311600115 of the spring 1:0, and-is provided at its outer end with an offset finger 11 which extend-s between the coils of the spring, and functions as a key tolock the bracket-'member 11 in connection wit-lithe spring. .111 attaching the member 11 to the end 1 0 of the spr1ng,'the part 11 with the projecting finger 11 is threaded throughthe coils of the spring i in the manner of a screw, until the'end 10 bears against the shoulder portion 11 after wh ch the end windings of. the spring are compressed as seen at 14,.Fig. .2 of the drawing, to retain the member 11 against rotation and. displacement from the spring. 10. 1

from sheet metal and is L -shaped in form, one

part lfi beingprov'ided with apertures for attaching screws 16 passed; into the door' frame 17'for thedoor'l and-the other part 15 which extends at right angles to the part le is providedoentrallywith. aperture- 15', and at the: outer end portion thereof with a plurality of similarapertures 15' spaced circumferentially with reference to the axis of aperture. 15. 'Rotatably mounted in g .75 Another bracket member 15 is fashioned connection with the: bracket member 15 is tension adju-stment key 18', the shank 18*of:

which-passes throughfithe :a )erture 15 "and is provided at itsfrIeeend with a laterally extending finger-18 which is. adapted to be threaded through the windings of the spring 10 atthe end portion 10 thereof, until said tened as seen at l0is in engagement with the.

and is under slight tension, and the key 1 8 is then secured in fixed relation'to' the spring end o-fth-e spring whichxis-preferably' fiat lower face of the part 15 of the: member 15,"

by compressing one or "more windingsthereof, as seen at'li), in Fig. 2 of the drawingw The other end of the key 10 is provided with an enlarged head 18, the width of which is sufficient to extend beyond the apertures 15 in the part 15 so as to engage apin 19 mounted in one of the apertures 15 to retain the keyflS as well as the spring 10 in agiven l position of adjustment, and. with said spring 9 under thedesired tension. 'The key 18- may be rotated to adjust the tension of the spring by the application of a, wrench to the wide,

, ing bracket ends constructed from cast metal flat head 18 or a rod may be placed in either of two apertures 18 provided in said head the head 18 is provided at one side with a.

downwardly directed finger or pin 20 adapted to be placed in either of the apertures 21, said apertures being preferably provided with beveled Walls, extending in the direc tion of rotation of the key 18 to facilitate the rotation of said key, as will be apparent. The same result may also be accomplished by providing one end of the spring 10 with an outwardly directed finger pin 22 as seen in Fig. 5 of the drawing, which will engage one of a number of apertures 23 in the bracket member 15. In this instance, the walls of the aperture 23 are also beveled on the lower face of the part 15 of the bracket to facilitate the displacement of the pin 22 in the adjustment of the spring. 7 i

It will be noted that the bracket member 15 .is held under tension by that part of the spring extending between said member and the finger 18 on the key 18. While the member 15 may be moved longitudinally of the key or the shank 18 thereof by compressing the spring, said key is not movable relatively to the spring in the rotation otthe key for applying tension to the spring.

It will be understood that by providing the sheet metal bracket members and the tension metal, I provide an entire device which has the greatest possible stren th and yet a device which may be manu. actured and sold at a very reasonable price; and the possibility of breakage, as is commonly experienced with other devices of this class employis obviated; and while I have shown certain details of construction for carrying my in-.

vention into effect, it will be understood that I am not necessarily limited to these details and various changes therein and modificaltions thereof may be made within the scope of the appended claims without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A spring of the class described, one end portion of which is provided with a sheet metal bracket member having an attaching plate part and an integral part to which one end of the spring is directly secured, a sheet metal bracket mounted in connection with the other end of the spring, and a member secured directly to said spring and mounted directly in connection with said last named bracket, and adjustable relatively thereto, for coupling the bracket and spring together and for retaining the spring in predetermined position with reference to said bracket.

2. A spring of the class described, oneend portion ot-whioh is provided with a sheet metal bracket member having an attaching plate part and an integral part to which one end of the spring is directly secured, a sheet metal bracket mounted in connection with the other end of the spring, a member secured directly to said spring and mounted directly in connection with said last named bracket and adjustable relatively pling the bracket and spring together and for retaining the spring in predetermined position with reference to said bracket, and said member being rotatable with referenceto the second named bracket: and adapted to adjust the tension of said spring. r j

3. A spring ofthe class described, one end portion of which is provided with a sheet metal bracket member having an attaching plate part, and an integral part to which one endof the spring is secured, a sheet metal bracket mounted in connection with the other end of the spring, a member secured to said spring and adjustable relatively to and cooperating with said last named bracket for coupling the bracket and spring together and for retaining the spring in redetermined position with reference to sai( bracket. said member being rotatable with reference to the second named bracket and adapted to adjust the tension of said spring, and means for retaining said member in predetermined positions of adjustment with reference to said bracket.

4.. The combination with a spring of the class described of brackets fashioned from flat strips of sheet metal for supporting the end portions of .said spring in connection with predetermined supports, and a member movably supported with refereneeto one of said brackets and having a part extending into and secured to one end of said spring for coupling the said bracket to said spring.

.5. The'combination with a spring of the thereto, for cou 6. The combination with a coil spring of the class described, of two sheet metal members extending into and in threaded engagement with the coils at the end portions of said spring and retained against displacement from said spring by the compression of one or more coils of the spring where said members are mounted therein.

7. The combination with a spring of the class described, of two sheet metal members in threaded engagement with the end portions of said spring and :retained against diss placement from said spring by the compression of one or more coils of the spring where said members are mounted therein, said members extending beyond the ends of said spring, and a bracket 'partsupported in conone end of the'spring andheld in engagement therewith by the member coupled with i said end of the spring, and means whereby said member and spring may be moved rela tively to said bracket part. 7

9. The combination with a spring of the class described, of two sheet metal members in threaded engagement with the end portions of said spring and retained against displacement from said spring by the compression of one or more coils of thespring where said members are mounted therein, said mem bers extending beyond the ends of said spring, a bracket part supported in connection with one end of the spring and held in engagement therewith by. the member cou pled with said end of the spring, 'means whereby said member and spring may be moved relatively to said bracket part, and means for retaining said-member in predetaching plate portion. I v 11. The combination with a coil spring of the class described of two members having hook ends extending into and in threaded en-r gagement with the coils at the end portions of the spring, the hookportion of said members termined positions of adjustment with reference to the bracket part.

10. The combination with a spring of the class described, of two sheet metal members in threaded engagement with the end portions of said spring and retained against displacement from said spring by the compression of one or more coils of the spring where said members are mounted therein, said members extending beyond the ends of said spring,a

bracket part supported in connection with one end of the spring and held in engagement therewith by the member coupled with said 1 end of the spring, means whereby said'member and spring may be moved relatively to said bracket part, means for retaining'said member 'in predetermined positions of adjustment'with-reference to the bracket part,

and the other of said membershaving an atbeing positioned between the windings of the spring, and said members being retained against displacement from the spring by the compression of one or more coils of the spring onto said members. i

12. The combination with a spring of the class described of two members having hook ends in threaded engagement with the end portions of the spring, the hook portion of said members being positionedbetween the windings of the spring, said, members being retained against displacement from the s rin b the com oressionof one'ormore one of said members having an enlarged head, and a bracket part positioned between the head of said member and one end vo1": the spring and said member and spring being adjustable' with reference to said bracket-part.

- Iii testimony that I claim the foregoingas my invention I have signed my name this 20th day ofMay 1927. I p

bE DWARJD J.COYNE.

coils of thespring onto said members, and 

